Flawfinder version 2.0.10, (C) 2001-2019 David A. Wheeler.
Number of rules (primarily dangerous function names) in C/C++ ruleset: 223
Examining data/ruby-exif-0.1.2/exif.c

FINAL RESULTS:

data/ruby-exif-0.1.2/exif.c:68:7:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
		f = fopen(RSTRING_PTR(fpath),"rb");
data/ruby-exif-0.1.2/exif.c:136:2:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	char buf[7];
data/ruby-exif-0.1.2/exif.c:137:2:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	char value[1024];
data/ruby-exif-0.1.2/exif.c:140:2:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
	sprintf(buf, "0x%04x", entry->tag);
data/ruby-exif-0.1.2/exif.c:219:2:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	char value[1024];
data/ruby-exif-0.1.2/exif.c:297:2:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	char buf[7];
data/ruby-exif-0.1.2/exif.c:310:4:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
			sprintf(buf, "0x%04x", tag);
data/ruby-exif-0.1.2/exif.c:322:2:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	char buf[7];
data/ruby-exif-0.1.2/exif.c:341:2:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
	sprintf(buf, "0x%04x", tag);

ANALYSIS SUMMARY:

Hits = 9
Lines analyzed = 621 in approximately 0.04 seconds (16950 lines/second)
Physical Source Lines of Code (SLOC) = 561
Hits@level = [0]   0 [1]   0 [2]   9 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   9 [1+]   9 [2+]   9 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 16.0428 [1+] 16.0428 [2+] 16.0428 [3+]   0 [4+]   0 [5+]   0
Dot directories skipped = 1 (--followdotdir overrides)
Minimum risk level = 1
Not every hit is necessarily a security vulnerability.
There may be other security vulnerabilities; review your code!
See 'Secure Programming HOWTO'
(https://dwheeler.com/secure-programs) for more information.